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Case Study: PO Greenhouse Film in Southern Vietnam — 4× Lifespan, Higher Yields

2026-08-11
📁 Customer Case  ·  Southern Vietnam · Vegetable Greenhouse

Case Study: PO Greenhouse Film in Southern Vietnam — 4× Lifespan, Higher Yields

How a commercial vegetable greenhouse operator in southern Vietnam replaced seasonally-failing PE film with 5-layer PO film — and what changed for their production cycle.

4×
Film lifespan
+20–30%
Yield uplift
~60%
Less relaying labour
5-layer
PO co-extrusion
PO greenhouse film success case in southern Vietnam — healthy crops under durable 5-layer polyolefin cover
This is a representative deployment based on a commercial vegetable greenhouse operation in southern Vietnam. Figures reflect typical outcomes we see when growers switch from economy PE to 5-layer PO film under humid tropical conditions.

The Operation

A multi-hectare vegetable greenhouse site in southern Vietnam produces tomato, cucumber, and chili for the domestic off-season market. The climate is humid tropical — year-round heat, high humidity, and strong equatorial UV. Production runs continuously, so any film failure directly cuts marketable harvest.

The Challenge

⏳ Seasonally-failing PE
Economy PE film degraded after a single wet season; anti-fog coating washed off, light transmission dropped.
💧 Condensation disease
Lost anti-fog meant dripping onto crops, raising fungal pressure in the humid climate.
🔁 Frequent relay
Replacing film every 1–2 seasons meant repeated labour, downtime, and disposal cost.

The Solution

We supplied 5-layer PO greenhouse film at 150–180 µ with anti-fog and UV stabilisers built into the resin (not a surface coat), plus a custom width to match the existing greenhouse structure. Because the additives are integral, performance holds for the full service life rather than washing off after one wet season.

SpecBefore (PE)After (PO)
MaterialPolyethylene (economy)5-layer Polyolefin (PO)
Anti-fogSurface coat (fades)Built-in, full life
Light transmission85–90%90–92%+
Service life1–2 seasons3–5 years
Thickness~120 µ150–180 µ

The Results

Film service life
PO Film3–5 years
PE Film (before)1–2 seasons
Reported outcomes (typical)
Yield uplift+20–30%
Film relay labour~60% less
Condensation diseaseReduced
Light transmissionHigher & stable
Takeaway: Under humid tropical conditions, the integral anti-fog and UV package of PO film removed the seasonal failure mode that PE film kept repeating. The operator now relays film roughly once per 3–5 years instead of every season — freeing labour for production and stabilising off-season supply.

Why It Worked in This Climate

💧
Integral anti-fog
Built into the resin, so condensation control survives the wet season instead of washing off.
☀️
UV stability
High-grade UV stabilisers resist equatorial sun without rapid chalking or yellowing.
🌱
Higher, stable light
90–92%+ transmission held over years supports steady photosynthesis and yield.

FAQ — PO Film in Tropical Greenhouses

Why does PE film fail so fast in humid tropics?

Economy PE relies on a surface anti-fog/UV coating that washes off after a wet season, after which light transmission drops and condensation drips onto crops. PO film carries these additives inside the resin, so they don’t wash off.

Is PO film worth the higher upfront cost?

In multi-season use it typically pays back through 3–5× lifespan, fewer relays (less labour and downtime), and steadier yields — the per-season cost is usually lower than repeated PE replacement.

What thickness is right for Vietnam greenhouses?

We commonly recommend 150–180 µ PO film for southern Vietnam’s humid tropical conditions, with anti-fog and a high UV grade; exact spec is set after reviewing your structure and crop cycle.

Do you supply to Vietnam and support custom width?

Yes. We ship to Ho Chi Minh (Cat Lai) and Hai Phong, and tailor width, thickness, colour, and additive package to your greenhouse. Private-label Vietnamese roll printing is available for distributors.

What certifications support import clearance?

We are ISO 9001 and SGS certified, with REACH and TÜV options. Certificates are provided on request.

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